[7a-N307-1~11] 12.3 Functional Materials and Novel Devices

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[7a-N307-4] Creating a polarized light emitter based on the inhibition of intermolecular CH-π interaction

〇Takumi Matsuo^1,2, Shotaro Hayashi^1,2,3 (1.School of Eng. Sci., Kochi Univ. of Tech., 2.Res. Inst., Kochi Univ. of Tech., 3.FOREST, JST)

Keywords:

Crystal engineering,Organic single crystal,Polarized luminescence

Organic single crystals composed of π-conjugated molecules possess transition dipole moment (TDM) depending on their chemical structure and conformation, which causes anisotropy, directionality, and polarization in the light emission. In this work, we introduced a substituents to the π-conjugated molecules to inhibit CH-π interactions, and performed crystal engineering to control the orientation of TDM in a crystal. As a result, we modulated the direction of the light emission in the two-dimensional organic single crystal from edge emission to surface emission, and thus, we created a crystalline material that spontaneously emits polarized light from the surface.